const fs = require('fs');
const path = require('path');
const jsonPath = path.join(__dirname, 'countries_data.json');
const rawData = fs.readFileSync(jsonPath);
const stringData = rawData.toString();
const lines = stringData.split('\n');
const badLines = lines.filter(line => {
 return ['ā', 'ê', 'î', 'ô', 'û'].some(char => line.includes(char));
});
console.log(badLines.join('\n'));